Paper Titles
Preparation of Humidity Control Ceramics from Selectively Leached Kaolin
p.333
Effects of Glass-Additives on the Properties of Ni/Ceramic PTC Composites
p.337
Preparation of Ni/BaTiO3 Composites and PTC Effect
p.341
Study of Graphite/Bakelite/BaTiO3-Based PTC Ceramics Composite
p.345
Effect of BaCO3 and Pb3O4 on Properties of BaTiO3-Based PTCR Ceramics
p.349
Ni/Graphite/BaTiO3 PTCR Composites
p.353
Electrical Properties of BaTiO3 Doped with Lanthana and Niobia
p.357
Effect of Li+ and Mn2+ Doping on the Electrical Properties of SrTiO3-Based Varistor Ceramics
p.361
(Ba,Sr,Pb) TiO3-BaPbO3 System Compound PTC Ceramic
p.365

Effect of BaCO3 and Pb3O4 on Properties of BaTiO3-Based PTCR Ceramics

Article Preview

Abstract:

High-performance PTCR ceramics with low resistivity (8Ω.cm) at room temperature and around four orders magnitude of the PTCR jump were obtained by adding BaCO3 and Pb3O4(B-P) in BaTiO3. The influence of adding B-P on the sintering behavior, the microstructure and the electrical properties of BaTiO3-based PTCR was investigated. The phase constituent in the sintered ceramics was analyzed by XRD and it was shown that the metallic layered Ba3Pb2O7 phase was synthesized during the sintering. Analysis suggested that making the weak reduction atmosphere at the grain boundary may decrease the grain-boundary resistivity.

You might also be interested in these eBooks
High-Performance Ceramics III View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

349-352

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.349

Citation:

Cite this paper

Online since:

February 2007

Authors:

Wei Bing Ma, Yuan Fang Qu, Yan Xia Hao

Keywords:

Ba3Pb2O7, BaTiO3, PTCR

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] J. Daniels, K.H. Haerdtl and R. Wernicke: Philips Technical Review Vol. 38 (1978), p.73.

Google Scholar

[2] S.B. Desu and D. A Payne: J. Am. Ceram. Soc. Vol. 73 (1990), p.3407.

Google Scholar

[3] H. Ueoka and M. Yodogawa: IEE Trans. Manuf. Technol. MFT-3 Vol. 3 (1974), p.77.

Google Scholar

[4] S.M. Su, L. -y. Zhang, H.T. Sun and X. Yao: J. Am. Ceram. Soc. Vol. 77 (1994), p.2154.

Google Scholar

[5] K. Nozaki, M. Kawaguchi, K. Sato and M. Kuwabara: J. Mater. Sci. Vol. 30 (1995), p.3395.

Google Scholar

[6] M. Takada, S. Umino and K. Hayashi: J. Jpn. Inst. Metals Vol. 56 (1992), p.303.

Google Scholar

[7] H.B. Brom: Superconductivity Vol. 4 (1994), p.235.

Google Scholar

[8] A. Chen, Y. Zhi and Y. Bao: J. Phys. Condensed Matter Vol. 6 (1994), p.7921.

Google Scholar

[9] M. Kuwabara, H. Nagata, K. Nakao, R. Liang and M. Takeo: J. Mater. Sci. Lett. Vol. 8 (1989), p.411.

Google Scholar

[10] L.F. Matthesis: Phys. Rev. B Vol. 42 (1990), p.359.

Google Scholar

[11] R.J. Cava, H. Takagi, H.W. Zandbergen, B. Hessen, J.J. Krajewski and W.F. Peck: Phys. Rev. B Vol. 46 (1992), p.14101.

Google Scholar